St. Patrick’s Day (March 17) has become a favorite day of celebration for millions of Americans, both Irish-Americans and the non-Irish alike. Sure and begorrah. There are parades and parties, displays of shamrocks and green everywhere, meals of corned beef and cabbage and, of course, ample spirits.

The poisoning of Sergei and Yulia Skripal is another example of targeted assassinations on foreign soil with reckless disregard for diplomatic norms, innocent bystanders and respect for national sovereignty. US and UK governments must act forcefully.

After the school shooting in Parkland, Florida we are yet again considering arming teachers. We’ve been here before. After Columbine. After Sandy Hook. There’s a certain comfort in the heroic fantasy – “if just one good guy with a gun had been there.”

Senators Mike Lee (R-UT), Bernie Sanders (I-VT), and Chris Murphy (D-CT), an unlikely alliance of senators, have introduced legislation invoking the War Powers Resolution in order to end military involvement of the U.S. in Yemen. This moment is monumental: this week, the Senate will hold the first ever vote to withdraw U.S. forces from a war that was never authorized by Congress.